The rumor floating around claimed that the building that houses most of the roller coaster ride portion might be themed on its exterior to a Nova Corps facility, as seen in the Guardians of the Galaxy films. However, internal sources claim Disney is not worried about the sight-lines in the area as the building is only (mostly) visible from the parking lot or from across World Showcase.
The theme of Epcot is not quite as rich in story as say The Magic Kingdom or Disney’s Animal Kingdom where you re being transported to various real and fictitious locales. When you are in Future World at Epcot, you are in Future World at Epcot in story as well. This is why the idea of Peter Quill visiting Epcot in the 1980’s is a part of the story for this new attraction. This story even carries through in the current Guardians of the Galaxy – Awesome Mix Live show at Epcot, where the Xandarians have decided Epcot is a good cultural epicenter for them to present the music of their planet to the people of Earth. This kind of “story” keeps Disney from having to hide many of the larger show buildings in Epcot, such as Soarin’, which has been visible from many spots in the park since it opened back in 2005. That being said, the Guardians of the Galaxy building is far taller and will probably get more attention from guests.